Typewriting machine



Dec. 15, 1925 F. A. HART IYFEPWRITING' MACHINE Filed A rii 30, 1924 2 Sheets-Sheet 1 YINVENTOR 7 l E r I ATTORNEY -Dec. 15, 1925. 1,565,936

F. A. HART TYPEWRITING MACHINE Filed April 30, 1924 2 Sheets-Sheet 2 WW E ATTORNEY m? WW mm .3 $4

WITNESSES Patented Dec. 15, 1925.

UNITED STATES PATENT OFFICE.

FREDERICK A. HART, OF NEW BRITAIN, CONNECTICUT, ASSIGNOR To REMINGTON TYPEWRITER COMPANY, or ILION, EW YORK, A CORPORATION OF NEW YOR TYPRWRITIN MACHINE.

Application filed April 30, 1924. Serial No. 710,040.

To all whom it may Concern:

Be it knownthat I, FREDERICK A. HART, citizen of the United States, and resident of New Britain, in the county of Hartford and State of Connecticut, have invented certain new and useful Improvements in Typewriting Machines, of which the following is a s ecification.

y invention relates to paper feeding and controlling mechanism,- and its general object is to rovide new and improved mechanism of t e character stated which is particularly adapted to feeding and controlling a continuous strip that receives writing at predetermined intervals, together with a record sheet and transfer medium or carbon sheet, said sheets being fed differentially from said strip. One of the specific objects of the invention is to carry out the purposes stated above by employing certain novel devices of my own invention in combination with the rior invention of E. E. Barney disclosed in his application, Sr. No. 709,918 filed A ril 29, 1924.

To t e above and other ends which will hereinafter appear, my invention consists in the features of construction, combinations of devices and arrangements of parts hereinafter described and particularly pointed out in the claims. a

a In the instance for which my invention was designed, one work sheet comprises a continuous strip provided with a series of printed blanks or check forms following along after one another successively and each adapted to receive a single line of typewriting. The check strip which is preferably in roll form is led over the platen and advanced continuously between the lines of typewriting, the matter of which is reproduced through a carbon sheet on an underlying record sheet.

In providing a construction to take care of this Work, I employ a bail pivoted on the front bar of the carriage of the typewriting machine and extending rearward so that the cross bar of the bail lies at the front side of the platen and above the'same, the bail being normally latched down on .the carriage frame. Mounted on the cross bar ai'e upright guide arms carrying slides or stop blocks over which the check strip is led after passing through a guide slot behind the cross bar, said guides being employed to keep the Strip stra ght} and prop y po itio e guide arms, the strip being thereby ad vanced a predetermined extent independently of rotation of the platen. The record sheet is not controlled by the slides but is spaced line by line through rotation of the platen and cooperating paper feeding devlces.

My invention will be described in detail in connection with the accompanying draw.- ings wherein Figure 1 is a fragmentary side view, partly in section, of the carriage of a Remington typewriting machine with my invention applied thereto.

Figure 2 is a vertical sectional view taken on a plane indicated by the section line 1 in Fig. 1 and looking rearward in the direction of the arrow at said line.

Figure 3 is a perspective view on an enlarged scale of one of the paper controlling slides or blocks.

Figure 4 is a fragmentary front elevation, partly in section, of the carriage and the parts supported thereon comprised in my invention.

Figure 5 is a horizontal sectional view taken on a plane indicated by the section line 2, 2 in Figure 1 and looking downward in the direction of the arrow at said line. Figures 4 and 5 are drawn to a smaller scale than Figure 1.

Figure 6 is a fragmentary perspective View of a detail.

As appears in Figure 1, the main frame of the Remington typewriting machine to which my invention is shown as applied comprises a top plate 1 above which are fixed front and rear guide rails 2 and 3 that co-operate through antifriction rollers t with the oppositely grooved frontan d 1 rear bars 5 and 6 of a rectangular carriage truck that further comprises end bars 7 connecting the front and rear bars. Said truck is comprised in a traveling carriage which urther inc des a platen frame mounted on ice the truck, said platen frame comprising end bars 8 connected at the rear by a cross bar 9. Rotatably mounted on the carriage is a platen 10 with the front face whereof cooperate key actuated type bars (not shown), said platen being adapted to be turned stepby-step by finger wheels 10 and step-bystep line spacing devices. Co-operative with the platen are paper feeding and controlling devices of ordinary construction comprising a sectional main feed roller 11 and a front feed roller 11 the sectional feed rollers 11 and 11 contacting with the platen through openings in a paper apron or deflector 12. The feed rollers 11 and 11 together-with the deflector are adapted to be released, or moved to the dotted line position shown in Figure 1 by means including devices that operate automatically during the leftward travel of the carriage as is well understood.

Pivoted at 13 to projections 14; on the front bar 5 of the carriage truck are the side arms 15 of a bail which further comprises an angular cross bar 16. The arms 15 extend rearward from their pivots and terminate forward of the platen, the connecting cross bar 16 extending lengthwise of the platen at its front side and somewhat above the same. Secured to the rear face of the cross bar or angle bar 16 near its ends by rivets 17 are U-shaped brackets 18 between the arms whereof are pivoted at 19 rollers 20 which are adapted to bear on the top of the platen lO near its ends, these rollers assisting to support the bail 15, 16 and determining its normal relationship with the platen. In orderto maintain the bail in its normal relationship with the platen and prevent accidental lifting or swinging movements of the bail, devices are provided for holding it against movement, said devices comprising upstanding latches 21, each terminating at the top in a laterally bent off-set or finger piece 22 and at the lower end being provided with a notch 23. The latches are pivoted between their ends on headed shoulder screws 2% which are threaded into the downwardly bent arm 25 of angular brackets which further comprise horizontally disposed arms 26, said brackets being secured to the end portions of the cross bar 16 of the bail by screws 27 and co-operating nuts 28. The inner ends of the shanks of pivot screws 24 also receive-nuts 29 whereby the pivot screws are securely clamped to the brackets 25, 26. Each bracket arm 25 is provided with outwardly extending parallel ears 30 which loosely embrace the associate latches 21 and serve as stops to limit the pivotal movements thereof. Surrounding the unthreaded body portions of the pivot screws2el are coiled wire springs 31 which engage the latches 21 and tend to throw their lower arms constantly forward and to maintain the notches 23 engaged with headed pins 32. Said pins are carried by angular brackets 33 secured by screws 3-1: to the side arms 7 of the truck. lVhen the spring-pressed latches 21 are engaged with the pins or projections 32 as in Fig. 1. the bail and parts carried thereby will be held down in normal position. However, by pressing or pulling forward on the finger pieces 22, the latches may be disengaged from the pins 32, thus releasing the bail and enabling it to be swung upward on its pivots 13. On restoring the hail, the latches will'automatically snap over the pins 532, (1110130 the rounded or cam shaped under portions of the latch arms 21.

Mounted on the cross bar as hereinafter described are parallel guide arms or trackways 35, these being properly spaced apart lingthwise of the platen in accordance with the width of the web or work sheet, and extending upward transversely of the platen and slightly towards the rear. The guide arms 35, which may be adjustable to vary the space between them, provide supports for rectangular blocks or slide pieces 36 each formed with a slot 37 to enable the block to fit over its guide. arm and slide freely up and down thereon. The front face of each slide block 36 is knurled or roughened as indicated at 38 to promote frictional engagement with the paper and prevent slipping. Upward movements of the slides 36 on the arms are limited by stop pieces 30 which are formed with slots 1-0 that receive screws -11, whereby the stops are adjustably secured to the arms 35 and are enabled thus to variably limit upward movements of the slides 3 Adjustably secured to the cross bar 16 outside the guide arms 85 are paper side guides42 which are made of sheet metal and comprise base portions or feet 4:3 from which rise angular guiding portions ift. The base portions are formed with slots 45 which receive headed screws 1-6 that are threaded into the top of the cross bar 16 and adjustably secure the guides 42 thereto. A strip 47'is suitably secured to the back of the cross bar 16 as by rivets 45, said strip being off-set from the face of the cross bar to provide a guide slot 18. The guide arms 35 are suitabl secured to the strip 4:7 as "by rivets 17" (Fig. 6), so that the check strip, rising through the slot &8 may overlie the arms 35 and rest against said arms and the slide pieces 36 at its side edges.

As stated, the check blanks are in the form of a continuous strip or web 19 which is wound into a roll as indicated at 50. said roll being rotatably supported at 51 on brackets or arms 52 which are suitably secured to the sides of the carriage. The web is led off at the front of the roll and downward under the cross arm 53 of a t l -shaped guide or ball which furthertomlit) iii

prises side arms 54 perforated to bear pivotally on the cross bar or rod 9. The side arms 54 are connected by a strip 55 spaced down from the cross portion 53 so as to pro vide a slot-way 56 through which the web 49 is led, said web passing over the strip and thence being led' to the platen and over the apron 12. The guide comprising the bail 53, 54 and the strip 55, is spring mounted and controlled. A collar 57 is screwed fast to the rod 9 outsidetheright-handarm 54 and is provided with an inwardly projecting stop pin 58 which underlies the arm 54 and-provides a support for the guide. To the left of the left-hand arm 54, a wire spring 59 is coiled around the rodl), the inner end of said spring engaging the arm 54 and the outer end being connected. to a screw 60 which holds fast a collar 6'l mounted on the rod The spring 59 is thus so mounted that it tends constantly to maintain the guide down against the stop 58 and also to hold it in lengthwise position against the collar 57. Should there be a sudden jerk or pull communicated to the work sheet or web 49. the spring 59 will yield, permitting the guide to swing up correspondingly on the rod 9 as a center, the construction being such as to enable the guide to exert a proper tensioningeffect on the web 49 under all conditions of operation. After passing over the strip 55 of the guide and over the rod 9, the web 49 isled down behind and under the platen over the deflector 12 and between the platen and the feed rollers l1 and .11, thence being guided upward at the front side of the platen behind the cross bar 16 and through the guide slot 48. This brings the free end of the web or work sheet to a position overlying the slides 36, the side guides 44 co-operating with the side edges of the web to guide it in proper position lengthwide ofthe platen. From Figures 4 and 5, it will be seen that the side edges of the web extend somewhat beyond the underlying slides 36 in convenient position to be grasped or gripped with the slides. The web is in the present instance, preferably divided transversely by perforations 62, each section thus divided containing the printed blank of a check form. This may be outlined by a rectangle as shown in Fig. 4 wherein the printed matter is indicated at 63 and 64. The single line of typewriting which the form is intended to receive is indi- .cated at (55. There is alsoemployed in the style of work under consideration, a wide record sheet 66 which underlies the sheet or web 49 and may extend considerably beyond its side edges. The record sheet 66 after leaving the printing point at the front of the platen is teparated from the check sheet 49,: being led rearward back of the guide or strip 47-Tind under the bail rolls 20. The

' record sheet 66 is fed diiferentially from the check sheet, said sheet 66 being adapted to be advanced line space distances when the platen is turned by the usual line spacing devices comprising the ratchet wheel 67, pawl 68 and connected line spacing handle or lever 69 (Figs. 1 and 4).

In order to print on the record sheet a transfer or carbon strip 70 is introduced be tween the two sheets 49 and 66 and is fed around the platen with the latter sheet. The carbon sheet 70 is preferably continuous, being wound in a roll 71 that is supported on a shaft 72, said shaft being provided at its ends with finger wheels 7 3, and bearing, just inside said finger wheels, in open mouthed slots 74 formed at the top of arms 7 5. Said arms are secured by screws 7 5 to the rear portions of the arm's 8 and project upward therefrom (Figs. 1 and 2). The loose end of the carbon sheet 70 is led off from the back of the roll 71 and thence around the olaten and under the bail rolls 20 at the top thereof, said carbon overlying the record sheet 66. In order to prevent unwinding of the carbon from its roll to an undue extent, a brake device is preferablv provided comprising a spool 7 6 mounted on the rod 72 just inside the right-hand arm or support 75. (lo-operating with the spool 76 is a stirrup or split collar 77, the stirrup partly surrounding the spool between its flanges and having downwardly extending arms 78 which are connected by an adjusting screw 79. In the space 80 between the arms 78 projects a screw pin or stop 81 which is secured in the adjacent support 75. The spool 01, flanged collar 76 is fastened on the shaft 72 so that turning movements of the latter generate friction between the spool 76 and the stirrup 77. This friction may be varied by tightening or loosening the screw 79. The pin 81 acts as a stop to limit rotary movements of the stirrup due to the friction, the friction preventing undue winding off of the carbon under a sudden impulse.

The operation of my invention may be briefly explained. Supposing the sheets 49, 66 and 70 to have been properly introduced and adjusted in position for receiving the typewriting, and that a check having been typewritten, it is desired to advance it in order to write the next succeeding check. The carriage is moved leftward causing the feed rollers 11 and 11 to be automatically released in a well known manner, as set forth for example in the patent to Phelps, No. 1,100,442 dated Jan. 16, 1914.

i It will be understood that the extreme end or marginal feed rollers are not affected by the automatic throw-off and that these end rollers, together with the bail rolls 20, cooperate with the outer margins of the record sheet to maintain it in proper relationship with the platen. The narrower web or check sheet 49, however, is entirely freed by this automatic throw-off. In order to advance the check sheet continuously into proper position for receiving the typewriting on the next check blank, it is only necessary for the operator to press the check sheet back against the slides 36 with his thumbs and to grasp the slides, clamping the paper against them and then to, pull up on the slides, advancing themand thereby feeding the check sheet continuously over the platen until they are arrested asshown by dotted lines in Fig. 1, by the contacting of the slides with the stops 39 at the upper ends of the trackways This predetermined extent of advance or movement brings the next check into printing posit-ion. On releasing the slides they drop back through the force of gravity into nonmal position in contact with the top face of the cross bar 16. The line spacing handle 69 may next be ope ated to return the carriage from left to right and line space the record sheet the released paper feeding devices including the feed rollers 10 and 11, being automatically restored to normal position during this return movement. The next check may then be written, the data being reproduced on the underlying record sheet. The operations above outlined may be repeated for each check. The written part of the check strip is torn off as convenient.

It will be understood, of course, that the above described operations are only one method, given by way of example, of the various uses to which my invention may be put; and that changes of construction may also be made without departing fro-m said invention.

By my invention there is provided means for controlling the feeding paper over a platen independently of turning movements thereof and under the direct pull of the operator in combination with means for supporting and differentially feeding another sheet. The invention it will be seen, employs extremely simple and effective means for line spacing one sheet and for feeding another sheet continuously to predetermined extents; and may advantageously replace more complicated constructions heretofore employed for the same purpose.

No claim is made herein to the continuous feeding means per se involving the slide pieces 36, the same being the invention of E. E. Barney and disclosed in his aforesaid prior application.

What I claim as new and desire to secure by Letters Patent is 1. In a typewriting machine, the combination of a platen, line spacing devices therefor, paper feeding devices co-operative with said platen to advance a work sheet step-bystep when said line spacing devices are actuated, and means for controlling the feeding of a second work sheet over the platen under the grasp of the opel' ltorapplied directly to said second work sheet and to said means itself.

2. In atypewriting machine, the combination of a platen, line spacing devices therefor, paper feeding devices co-operative with said platen to advance a work sheet stepsbystep when said line spacing devices are actuated, means for assisting the continuous feeding ofa second work sheet under the grasp of the operator applied directly to said second work sheetand to said means itself, and means for limiting the feeding movement of said second. work sheet to a predetermined extent.

3. In a typewritingmachine, the combination of a platen, line spacing devices therefor, paper feeding devices co-operative with said platen to advance a work sheet step-bystep when said line spacing devices are actuated, and a device having a predetermined path of movement on the carriage and adapted to assist the operator in controlling the continuous feeding of a second work sheet over the platen independently of the first work sheet.

4. In a typewriting machine, the combina tion of a platen, releasable feed rollers cooperative therewith, line spacing devices for advancing a work sheet step-by-step over the platen in co-operation with said feed rollers, and movable devices adapted to be grasped by the ope ator to assist in advancing a second work sheet continuously over the platen while said feed rollers are in released position.

5. In a typewriting machine, the combination of a platen, a carriage, a slotted guide, and a pair of devices mounted on the carriage for controlling a work sheet as it advances through said slotted guide, said devices and said work sheet being directly grasped by the operator and moved together.

6. In a typewriting machine, the combination of a platen, a carriage, a slotted guide, a pair of devices mounted on the carriage for controlling a work sheet as it advances through said slotted guide, said devices and said work sheet being directly grasped by the operator and moved together, and relatively stationary stops for arresting said devices together with the work sheet.

7. In a typewriting machine, the combination of a platen, a carriage, a paper roll holder supported on the carriage, a pivoted guide with which the paper from the roll holder co-operates, and spring means for controlling the position of said guide both pivotally andalso axially.

8. In a typewriting machine, the combination of a platen, a carriage, a paper holder supported on the carriage, a guide frame pivoted on the carriage and provided with a guide slot, a stop for said guide frame, and spring means tending constantly to maintain i uide fr m e age a t p said spring means also assisting to maintain said guide frame in position endwise of the platen.

9. In a typewriting machine, the combination of a platen, a carriage, a paper holder supported'on the carriage, a cross rod on said carriage, a bail pivoted on said cross rod and provided with a paper guiding slot, stops to limit both rotary and endwise movements of said bail, and a spring tending constantly to maintain said bail engaged with said stops.

10. In a typewriting machine, the combination of a platen, a platen carriage, a bail pivotally mounted on said carriage, guide arms onsaid bail, and paper slides on said guide arms.

11. In a typewriting machine, the combi nation of a platen, a platen carriage, a bail pivoted on said carriage and also supported by said platen, said bail comprising a cross bar extending lengthwise of the platen, parallel guide arms supported from said cross bar and extending transversely ofthe platen, and paper slides on said guide arms.

12. In a typewriting machine, the combination of a platen, a platen carriage, a bail pivoted on said carriage and also supported by said platen, said bail comprising a cross bar extending lengthwise of the platen, a guide strip on the cross bar and co-operative therewith to provide a slot, guide arms secured to said strip, and paper slides on said guide arms.

13. In a typewriting 'macl1ine,the combination of a platen carriage, a bail pivotally mounted thereon and comprising a cross bar, a spring pressed latch for maintaining said bail in normal position on said carriage, a pair of parallel arms upstanding from said cross bar, and paper controlling blocks slidable on said arms.

14. In a front strike typewriting machine, the combination of a platen, a cross bar at the front side of the. platen, guide arms upstanding from said cross bar and inclined slightly towards the rear, and paper 0011- trolling blocks loosely mounted to slide up and down on said guide arms, said cross bar being mounted to swing away from the platen with said guide arms and blocks.

15. In a typewriting machine, the combination of a platen carriage, a bail pivotally mounted thereon and comprising a cross bar, rolls on said bail bearing on the platen, latches for maintaining said bail in normal position on said carriage, and paper controlling slides mounted on said bail.

16. In a typewriting machine, the combination of a platen carriage, a bail pivotally mounted thereon and comprising a cross bar, rolls on said bail bearing on the platen, latches for maintaining said bail in normal position on said carriage, a pair of parallel arms upstanding from said cross bar, and

paper controlling blocks slidable onsaid arms.

17 In a typewriting machine, the combination of a platen carriage, a bail pivotally mounted thereon and comprising a cross bar, rolls on said bail bearing on the platen, latches for maintaining said bail in normal position on said carriage, paper side guides on said cross bar, arms on said cross bar, and slides on said arms for controlling the paper led from said guides.

18. In a typewriting machine, the combination of a platen carriage, a bail thereon, parallel guide arms rising from said bail, paper controlling slides on said guide arms, a roll holder on said carriage, the paper from said roll holder being guided around said platen and being adapted to be controlled by said slides, a carbon paper roll holder on said carriage, and means co-operative with said platen for feeding a work sheet over he platen inside of said carbon paper.

19. In a typewriting machine, the combination of a platen carriage, a bail thereon, parallel guide. arms rising from said bail, paper controlling slides on said guide arms, a roll holder on said carriage, the paper from said roll holder being guided around said platen and being adapted to be con trolled by said slides, a carbon paper roll holder on said carriage, means co-operative with said platen for feeding a work sheet over the platen inside of said carbon paper, and a spring mounted paper guide adjacent to said first recited roll holder. 20. In a typewriting machine, the combination of a platen carriage, a bail thereon, parallel guide arms rising from said bail, paper controlling slides on said guide arms, a roll holder on said carriage, the paper from said roll holder being guided around said platen and being adapted to be controlled by said slides, a carbon paper roll on said carriage, means co-operative with said platen for feeding a work sheet. over the platen under the carbon paper, and a brake for said carbon roll holder.

21. In a typewriting machine, the combination of a platen carriage, paper control ling slides on said carriage, a carbon paper roll on said carriage, means co-operative with said platen for feeding a work sheet over the platen under the carbon paper, the slides feeding a sheet over the carbon paper, and a brake for said carbon roll holder, said brake comprising a strap frictionally mounted on the carbon roll holder shaft and co-operating with the stationary projection.

Signed at the borough of Manhattan, city of New York, in the county of New York and State of New York, this 29th day of April, A. D. 1924.

FREDERICK A. HART. 

